-Wmissing-prototypes in c++

[Lars Albertsson]

The missing-prototypes warning option appears to have no effect using
g++. The following program reults in a warning compiled with gcc, but
not with g++.

Egcs was configured using --prefix=/opt/egcs-1.1.2.

saruman:~/src/test> cat prototype.c 
int test(void)
{
  return 5;
}

saruman:~/src/test> /opt/egcs-1.1.2/bin/g++ -v --save-temps -c -Wmissing-prototypes prototype.c
Reading specs from /opt/egcs-1.1.2/lib/gcc-lib/i686-pc-linux-gnu/egcs-2.91.66/specs
gcc version egcs-2.91.66 19990314 (egcs-1.1.2 release)
 /opt/egcs-1.1.2/lib/gcc-lib/i686-pc-linux-gnu/egcs-2.91.66/cpp -lang-c++ -v -undef -D__GNUC__=2 -D__GNUG__=2 -D__cplusplus -D__GNUC_MINOR__=91 -D__ELF__ -Dunix -Di386 -D__i386__ -Dlinux -D__ELF__ -D__unix__ -D__i386__ -D__i386__ -D__linux__ -D__unix -D__i386 -D__linux -Asystem(posix) -D__EXCEPTIONS -Wmissing-prototypes -Asystem(unix) -Acpu(i386) -Amachine(i386) -Di386 -D__i386 -D__i386__ -Di686 -Dpentiumpro -D__i686 -D__i686__ -D__pentiumpro -D__pentiumpro__ prototype.c prototype.ii
GNU CPP version egcs-2.91.66 19990314 (egcs-1.1.2 release) (i386 Linux/ELF)
#include "..." search starts here:
#include <...> search starts here:
 /opt/egcs-1.1.2/include/g++
 /usr/local/include
 /opt/egcs-1.1.2/i686-pc-linux-gnu/include
 /opt/egcs-1.1.2/lib/gcc-lib/i686-pc-linux-gnu/egcs-2.91.66/include
 /usr/include
End of search list.
 /opt/egcs-1.1.2/lib/gcc-lib/i686-pc-linux-gnu/egcs-2.91.66/cc1plus prototype.ii -quiet -dumpbase prototype.cc -Wmissing-prototypes -version -o prototype.s
GNU C++ version egcs-2.91.66 19990314 (egcs-1.1.2 release) (i686-pc-linux-gnu) compiled by GNU C version egcs-2.91.66 19990314 (egcs-1.1.2 release).
 as -V -Qy -o prototype.o prototype.s
GNU assembler version 2.9.1 (i686-pc-linux-gnu), using BFD version 2.9.1.0.15

saruman:~/src/test> cat prototype.ii 
# 1 "prototype.c"
int test(void)
{
  return 5;
}

saruman:~/src/test> uname -a
Linux saruman.sics.se 2.0.35 #5 Wed Nov 4 11:32:07 CET 1998 i686 unknown